Engels district Bioecological analysis of ruderalis fraction of the flora of some fallow lands of Engel’s district of Saratov region Authors: Shevchenko E. N., Sergeeva I. V., Yabirova М. М. The article presents the results of bioecological analysis of ruderalis fraction of flora on the uneven fallow lands located on the territory of Engel’s district of Saratov region.